Engravers bangle-clamp



H. CARPENTER.

-ENGRAVERS BANGLE CLAMP.

No. '296.521, Patented Apr. 8. 1884.

n. PETRS. Phawumagnphef. washingtem D. C.

Nrrnn STATES ATnNr rines.

HENRY CARPENTER, OF FLUSHING, NEW' YORK.

ENGRAVERS BANGLE-CLMP- SPECIFICATION forming part of Letters Patent No. 296,521, dated April 8, 1884.

Application filed February 14, 1884. (No model.)

To @Zt whom it may concern..-

Be it known that {,Hnnnr CARPENTER., ci1` Flushing, in the county of Queens and State of N ew York, have invented certain new and useful Improvements in Engraverfs Bangle- Clamps, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part of this speciication, in which similar letters of' reference indicate corresponding parts in Aall the figures.

Figure l is a front elevation of my improvenient.V Fig. 2 is a sectional side elevationv of the same, taken through the line .fc/ai, Fig. 1. Fig. 3 is a plan view of the same.

Ihe object of this invention is to provide a simple and convenient clamp for holding bangies while being engraved.

The invention consists in an engravers bangle-clainp constructed witha tapered and slotted block having recessed clamping-plates attached to its upper end, and provided with a tapered and slotted band working on guidepins for drawing the parts of the clamp t0- gether, and a V-spring for separating the said parts, as will be hereinafter fully described.

A represents a cylindrical block of wood, the upper part of which is slightly tapered, and which is slotted from its upper end nearly to its lower end. The block A can be made of any desired or convenient height and size, and can be kept from splitting at the lower end of its slot B by a plate, C, of leather attached toits lower end, or a metal band, D, placed around the lower end of the said block. Both constructions are shown in the drawings, but in practice only one need befused.

Upon the tapered upper end of the block A is placed a. correspondingly-tapercd band, E, having lugs F upon its opposite sides,to serve as handles for turning the said band.

In the opposite sides of the band E, between the lugs F, are formed inclined slots G, to re ceive pins H, attached to the block A,as shown in Figs. l and 3, so that by turning the band E in one direction it will be forced downward upon the block A, and will draw the upper ends of the parts of the block A toward each other, and by turning the said band .in the other direction it will allow the said upper 5o ends to separate.

In the center ofthe block A is bored a hole, which will appear as grooves I upon the opposite sides of the slot B, and which can extend to any desired depth.

In the slot B is inserted a rl-shaped spring, J, the ends of which are bent outward, and are pointed, so as to engage with the grooves I of the block A, as shown in Fig. 2, and pre- Vent the said spring J from working out. In case a spring ofround wire be used, the grooves I can extend to or nearly to the bottom of the slot B, as shown, to receive the arms of the said spring.

To the upper ends of the parts ofthe block A are secured, by screws or other suitable means,semicircular plates K,of metal or other suitable material.

In the middle parts of the plates K are formed a number of semicircular recesses, L, corresponding in size with thcsize of different bangles to be engraved, each smaller recess being a little deeper than the next larger recess, as shown in Fig. 2.

At the outer edge of each recess L is formed a small recess, M, to receive an eye or loop, soldered or otherwise secured to the edge of the bangle for convenience in securing it to its support. l

Inthe drawings the recesses L are represented of suitable size to receive a gold dollar, adime, and a twenty-iive-cent piece.

In using the clamp the band E is turned up to allow the upper ends of the parts of the block A to be separated bythe spring J. rIlle bangle to be engraved is then placed in the proper recess L, and the band E is turned down to drapT the upper ends of the parts of the block A toward each other and clamp the bangle between the shoulders of the recess in the plates K,in which the said bangle is placed, and thus hold the bangle securely while being engraved. The bangle is released by again turning the band E upward.

"Having thus described my invention, what .I claim as new, and desire to secure by Letters Patent, is-

`Substantially as herein shown and described, and consisting of the tapered and slotted block having recessed clamping-plates K attached to its upper end, and provided with @tapered 5 and slotted band, E, guide-pins H, and a V- spring, J, as set forth.

2. 1n an engravers bangle-clamp, the combination, with the tapered and slotted block A, provided with recessed clamping-plates K,

of the tapered zuid slotted band E, the guide- 1o pins H, and the V-spring J, substantially as herein shown and described, whereby the parts or the clamp can be readily drawn together and separated, as set forth.

HENRY CARPENTER.

Ti tn esses JAMES T. GRAHAM, C. Sinne-W101i. 

